4020384020 has 12 divisors (see below), whose sum is σ = 8442806484. Its totient is φ = 1608153600.

The previous prime is 4020384019. The next prime is 4020384031. The reversal of 4020384020 is 204830204.

It can be written as a sum of positive squares in 2 ways, for example, as 673298704 + 3347085316 = 25948^2 + 57854^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100509581 + ... + 100509620.

It is an arithmetic number, because the mean of its divisors is an integer number (703567207).

Almost surely, 2^4020384020 is an apocalyptic number.

It is an amenable number.

4020384020 is an abundant number, since it is smaller than the sum of its proper divisors (4422422464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4020384020 is a wasteful number, since it uses less digits than its factorization.

4020384020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201019210 (or 201019208 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4020384020 is about 63406.4982474194. The cubic root of 4020384020 is about 1590.0929523866.

The spelling of 4020384020 in words is "four billion, twenty million, three hundred eighty-four thousand, twenty".